Liner bag for containers



April 17, 1934. R. L. GRAY LINER BAG FOR CONTAINERS 2 sheets-sheet 1 Filed June 14, 1935 A INVENTOR. /faf/ff/ /j )P4/6mm ATTORNEY.

.pri l7, 1934.

R. L. GRAY LINER BAG FOR CONTAINERS Filed June 14, 1935 2 Sheets-Sheet 2 INVENTOR.

iwf/P7 Z 5P/fr,

v /l ATTORNEY.

, 25 paper and the general and convenient location of raten-ted Apr. 17, 1934 1,955,385

UNITED STATES PATENT OFFICE 1,955,385 LINER BAG Fort CONTAINERS Robert L. Gray, Brooklyn, N. Y.

Application June 14, 1933, Serial No. 675,690

16 claims. (o1. 22o- 65) This invention relates to liner bags. tions of the vessel until the liner is to be used,

It is an object of my invention to provide a and thereby facilitates the lining operation and paper bag which is useful as a liner of vessels, holds the liner in position within the vessel dursuch as garbage cans, waste baskets, disposal ing use.

5 containers and receptacles for food stuffs which It is further contemplated as an object of my 60 may be stored or sold in a liquid or moist coninvention to not only provide bag liners o'f paper dition. l or similar fabric with fastening means to hold Disposal or garbage can liners as known to the same to a rim or body portion of the vessel me constitute paper fabric which had beenimwith which it is to. be used, but also to provide l pregnated with a water resistant or Waterproofa construction which minimizes the tearing 65 ing material, such as wax, which are formed into tendency of the liner.

a'tubular structure from a sheet or sheets of It is a further object 0f my inVentiOn t0 prepaper with a closed bottom and open lling end. vide liners vof the character described, made of These articles, where stacked preparatory to paper 0r Similar fabric Which are efcient in l shipment, are folded into a compact, hat layer use and of durable construction and which do 70 by a longitudinal gusset or gussets. In the not entail expensive manufacturing operations. formation of a liner from such type of bag, slits T0 attain these Objects and Such further 0bare severed adjacent the filling side for a portion jects as may appeal` herein 0r be hereinafter of the wa11 of the bag which, when in use, denne pointed out, I make reference t0 the accompanyrim flaps adapted to lie on the exterior of the ing drawings forming a Dart hereOf, in Which` 75 vessel to be lined, to ho1d the liner in position Figure 1 is a fragmentary plan View of a blank until it is ready to be separated from the vessel. from Which the liner may be made, in accordance Due to the nature of the fabric used, particularly With my inVentOn;

where a waterproofing coating is given to the Figure 2 iS a perspective VieW 0f the ecmpleted article constituting one embodiment of my inven- 80 the slits along the lines dening the-gusset folds, tion; the line of folds for dening the gussets presents Figure 3 is a fragmentary Side elevation 0f the weakened lines along which the paper tears liner'in use in connection with a receptacle or readily, especially in positioning the rim folding vessel, such asa garbage can; flaps defined by the slits. Furthermore, in the Figure 4 iS a Section taken .0n the line 4 4 0f 85 use of disposal can liners as known to me, the Figure 3; use of rim folding aps to hold the liner in posi- Figure 5 iS a fragmentary plan VieWOf aIlOther tion during use provided a source of annoyance embOdiment 0f my nVentiOn; Figure 6 iS a fragand inconvenience, in that the nature of the mentary perspective view thereof, with the parte fabric comprising paper does not permit of suitfclded in DOSitiOn fOr uSe; e

able engagement with the rim of the container Figure '7 is a perspective View illustrating anwith which the liniig is to be used, especiauy other embodiment of my invention as adapted during the time that very little material has been for use with another form of container. disposed of in the liner, or where the liner may Referring to the drawings, l0 cOnStitlltcS a bag not be of a depth corresponding to the vessel in made 0f paper 0r Similar material and formed 95 which the bag liner is positioned, from acontinuous sheet of paper, preferably im- It is therefore an object of my invention to pregnated to strengthen the paper, depending provide a bag constituting aiclosed ended tube 1113011 the use t0 Which the. liner iS t0 be putof paper or similar fabric sheet and formed with Thus, When the liner iS t0 be Used fOr holding a lling side slitted for a portion of the fabric, aqlleOuS materials Such aS garbage S1010y the-Da- 100 to denne rim engaging flaps, of means for formper is impregnated with waterprecng material, ing the flaps to serve as fasteners, whereby en- Such aS WaX- gagement of the naps may be accomplished in It will be understood that where the liner is relation to the vessel into the bag liner positioned t0 be used fOr holding greasy 0r fatty materials, to hold the flaps into rim 'folded position. the paper may be impregnated With grease-re- 105 It is a further object of my invention to prosisting materials, ofv which glue, gelatine and vide a bag liner of paper or similar fabric, for Similar gelatinous materials may be cited as exvessels which includes fasteners fromv the body amples Where paper iS thus impregnated and of the fabric constituting the bag which serve sharply folded, the fold lines display weaknesses to engage a rim or hole or any of the fixed porin the fabric, and tearing will readily follow the 11o fold line or crease, once started for any reason during the handling thereof.

In the production of a liner in the form of a bag, as the most usual manner of forming the same, a web of paper first has its ends connected into a tubular contour by some adhesive which serves to connect these ends together. From this tube so formed, for purposes of shipment and storage and to provide a convenient assembly, the tube is folded longitudinally. In the form of construction furnishing the most compact package with the simplest operation, a tubular section is provided with six fold lines dividing the bag into siX sides along the length of the tube. Four of these sides are of equal dimensions and constitute gussets. The two remaining sides are also of equal dimensions and constitute the front and back faces of the bag.

In Figure 2, the bag 10 is shown in the folded position, in which 11 constitutes the back face, 12 the front face, outlined by folds 13 and 14, respectively. The fabric 15 and 16 between the folds 13-13 and the folds 14-14 is provided medially thereof with oppositely disposed fold lines 17 and 18 forming the fabric 15 and 16 into a pair of gussets 19 and 20. In this position, a bottom 2l is formed by folding over a section 22, the same being pasted in position by adhesive to constitute a bottom. While it is most convenient to provide a bottom by the construction as described and merely by folding over the section 22, together with the intermediate gusset, it will be understood that a box fold of a well-known type may be provided at this end of the bag. At this stage of the operation, adjacent the open end 23, along the fold lines 13 and 14, the superimposed layers 11, 12, l5 and 16 are severed by stamping or cutting to sever a triangular section 24 running from a point adjacent the open end 23 from the fold lines 13 and 14 and terminating in the fold lines. Where the severing line 25 is rectilinear, slits 26 serve to form the fabric of the bag into flaps 27.

In accordance with my invention, in one embodiment thereof, the severing line 25 at the point 28 is inwardly directed to form a substantially semi-circular curve 29, providing an undercut lip 30 and a pointed tab or tongue 31.

The development of the bag blank to more clearly show the outline of the severing line 25, the aps formed thereby, and the fold lines in the faces and sides of the bag, are more clearly shown in Figure l.

When ready for use, a bag of the character described is distended to position the gussets outwardly to space all the walls to the fullest extent, whereupon the bag may be inserted into the particular vessel to be lined, such as a garbage can, sanitary receptacle, or for other purp'oses hereinafter more specifically mentioned.

Where the liner is to be used for household disposal cans, it more generally includes, as shown in the fragment thereof illustrated in Figures 3 and 4, a continuous body portion 32 terminating into a rim 33-rolled into a bead 34 about a wire renforcing ring 35. With this type of disposal can available, the liner bag is positioned therein in the usual manner, whereupon the flaps 27 are folded back over the rim adjacent the point 28. In this position, as more clearly shown in Figures 3 and 4, the edge of the naps are then pressed beneath the bead 34, so that the tongues 31 thereof are engaged beneath the bead 34, the undercut arcuate portion 30 thereof engaging the bead to prevent displacement of the flaps. Due to ,the undercut portion of the bead 34 and the similarity in contour of the tongue 31, the flaps 27 will be held against displacement. As a plurality of these engaging means are provided around the open end of a liner, the liner will be effectively held in position, whether the usual disposal lid'is positioned on the disposal can, or otherwise. By this construction, also, any tendency for tearing of the liner along the fold lines 13 as a result of the manipulation necessary for properly disposing the liner within the garbage can or similar vessel, will be avoided, as the manipulation of the flaps adjacent the arcuate cutout 29 provides a weakened line of fold transversely of any of the faces at a point remote from the fold lines or creases 13 or 14. Thus, the arcuate severing line not only provides means for engaging the rim of the disposal can or vessel with which it is to be used, but also provides a weakened fold line for the flaps 27 which prevents tearing adjacent the creases or folds 13 and 14.

In another embodiment of my invention, as more specifically illustrated in Figures 5 and 6, the portion of the fabric adjacent the arcuately directed cutting line may only be extended short of the creases or folds 13 and 14, to leave a tab having utility for purposes which will be hereinafter described.

In these views, a fragmentary section of a liner bag near the fold and adjacent the filling end of the bag, is shown. As in the previous embodiment, rectilinear cutting lines 25 serve to sever Ia triangular section 26, dening'flaps 27. Ad-

jacent the fold or crease 13 from a point 28a terminating just short of the crease or fold 13, the fabric is severed along an arcuate curve 29a, to provide an undercut portion 30a and a tongue 31a, in all respects of similar configuration to the embodiments illustrated in Figures 1 to 4. The tongues 31a are shown in spaced relationship so that the aps 27 are free to the points 28a. This leaves a tab 36 connected to the body of the fabric adjacent the crease 13 by a connecting section or tongue 37. For use, the liner may be positioned in all respects in the manner described in connection with the embodiments illustrated in Figures 1 to 4. In folding down the aps 27 to engage the rim of the container, this will leave the tab 36 in an upstanding position and may be subsequently disposed by folding in a direction opposite to the flaps 27, wherein the section 37 reinforces the fabric adjacent the points 28a. The tab 36 may, however, be positioned exteriorly of the liner and tucked to the interior of the vessel to which the liner is applied. Thus, the tab 36 and its appending section 37 serve to additionally reinforce the fabric adjacent the creases or folds 13. These tabs, it will be understood, are duplicated at each of the creases or folds of the bag liner.

In Figure 7, I have illustrated another application of a liner made particularly in accordance with the embodiment shown in Figures 5 and 6, and adapted for use for a merchandising container for food stuffs. In Figure 7, 38 represents a paper carton having closure aps 39 and a carrying bail 40. Paper cartons of this character are of general use for the merchandising of food stuffs sold in bulk which may be in an aqueous condition, such as cream, milk, sauerkraut, oysters, soup, cottage cheese, relishes, and other fluid or moist food stuffs.

In this embodiment, the paper container 38 may be made of any character of paper without regard to whether it is greaseproof or waterproof, and for purposes of use in connection with fluids, the fabric forming the liner 10a is made from a material depending upon the character of food stuffs with which it is to be used.

In this embodiment, a bag liner is chosen of a size and configuration generally correspondingv to the container 38 and is formed with aps 27 defined by the severing line, preferably in accordance with the embodiment illustrated in Figures 5 and 6. When ready for use, the liner is disposed within the container 38. In order to prepare any number of these containers and liners for use, preparatory to filling the same for vending any merchandise in accordance with the food stuffs previously enumerated, the tabs are pushed outwardly between two adjacent flaps 39, engaging the crotch 41 where a pair of fiaps terminate at the rim of the container. In this manner, the liner is held in position against the walls of the container, facilitating lling of the container with the food products.

It will thus be observed that I have provided a bag liner for the purposes described, which may be made into a bag structure of fabric which is impregnated to give it liquid penetrating resistance, whether waterproof or greaseproof, and the fold lines incident to the formation of the bag will not only be suitably strengthened to avoid tearing along the fold lines or creases adjacent the slits defining the flaps, but will also serve as means for more facilely positioning the liner and for engaging the rim of the container with which it is to be used, to suspend the liner in wall engaging relationship.

While I have described the fabric from which my liner may be made as being paperimpregnated with waterproofing or greaseproofing material depending upon the use to which the liner is to be applied, it will be understood that this liner may be made of other fabric, such as regenerated cellulose, and similar fabrics sold on the market under the trade name Cellophane, and which may include non-hygroscopic or waterproofing films, and also such fabric as parchmentized paper, all depending upon the particular moist or fiuid material to be deposited in the liner.

Also, though I have described the liner engaging means which define rim engaging tongues as best located adjacent the crease or fold of the bag, inthat the enlarged orifice formed in deiining such engaging means prevents tearing along the fold line or crease, it will be understood that this enlarged orifice and the rim engaging tabs formed thereby, may be located in the body' of any of the flaps, whether adjacent the fold line or crease of the bag, or otherwise, and when so positioned, provide desirable rim engaging tongues, .independent of the property of avoiding tearing along the folds or creases in the bag.

While I have illustrated my invention and described its use for the various purposes herein mentioned, it will be understood that the construction has a wide application, all coming within the scope of the appended claims.

Having thus described my invention and illustrated its use, what I claim as new and` desire to secure by Letters Patent, is-

1. A liner bag for receptacles of the character described, the Walls whereof adjacent the filling side are slitted into folding flaps, the base of the slits terminating at the folding portion of the flaps into enlarged orificed portions` 2. A liner bag for receptacles of the character described, the walls whereof are folded or creased to provide a flat package, and slitted portions adjacent the lling side of the walls defining flaps,

and terminating adjacent the folds or creases, and includng adjacent the base of the slitted portions, enlarged orifices.

3. A liner bag for receptacles of the character described, the walls whereof are folded or creased to provide a fiat package, and slitted portions adjacent the filling side of the walls defining flaps, and terminating adjacent the folds or creases, and including adjacent the base of the slitted portions, enlarged orifices, said orificed portions defining rim engaging tongues for the rim of said receptacle.

4.. A liner bag for receptacles of the character described, the walls whereof adjacent the filling side include enlarged orifices arcuately contoured defining an undercut section outlining repectacle engaging tongues.

5. A liner bag for receptacles of the character described, including folds or creases providing gussets when the bag is folded fiat, slits cut adjacent the filling side of the bag defining flaps adapted to be folded over the rim of the receptacle, said slits terminating adjacent the folds or creases into arcuately cut orifices providing depressible tongues adapted to engage beneath a bead formed on the rim of said receptacle and hold the iiaps in the folded position aforesaid.

6. A liner bag for receptacles of the character i described, and provided with gusset forming folds or creases, flaps defining slips adjacent the filling end of the bag, the terminal portion of said slits defining tongued portions adapted to be displaced into rim-bead engaging position when the fiaps are turned over on a rim of a receptacle.

7. A liner bag for receptacles of the character described, and providedwith gusset forming folds or creases, ap defining slits along said folds or creases adjacent the lling end of the bag, the terminal portion of said slits defining tongued portions adapted to be displaced into rim-bead engaging position when the aps are turned over on a rim of a receptacle.

8. A liner bag for receptacles, of the character described, formed by creases or folds into gussets folding said bag into a fiat package, slits formed in the walls of the bag directed from the filling side of the bag and terminating adjacent the creases or folds, and defining fiaps, the slit line adjacent the terminal portion thereof being inwardly directed away from the creases or folds to minimize tearing along the creases or folds. t

9. A liner bag for receptacles, of the character described, formed by creases or folds into gussets folding said bag into a flat package, slits formed' in the walls of the bag directed from the filling side of the bag and terminating adjacent the creases or folds, and defining flaps, the slit line adjacent the terminal portion thereof being inwardly directed away from the creases or folds leaving a connected tab, to minimize tearing along the creases or folds and reinforce the terminal portion of the slit.

10'. A liner bag for receptacles of the character described, formed by creases or folds into gussets, folding said bag into a fiat package, slits formed in the walls of the bag directed from the filling side of the bag and terminating adjacent the creases or folds and defining aps, the slit line adjacent the terminal portion thereof being inwardly directed along an arcuate line away from the creases or folds, leaving a rim bead engaging tongue on said fiaps and connected tabs of lobular contour intermediate said flaps.

irc

11. A liner bag for receptacles of the character described, slits formed in the walls of the bag directed from the filling side of the bag and dening ilaps, the terminal portion of the slit being arcuately directed leaving a connected lobular contoured tab intermediate said flaps.

12. In a lining for receptacles of the character described, a liner bag blank having wall defining sections, which sections adjacent the filling side of the bag to be formed are slitted into folding aps by slits, the base of the slits at the portion for folding the aps terminating into an enlarged orice portion.

13. In a lining for receptacles of the character described, comprising a liner bag blank with wall defining sections, the latter of which are slitted adjacent the lling side into folding flaps by slits, portions of material adjacent a slit, dening tongues adapted to be displaced into rim head engaging position, when the flaps are turned over on a rim of a receptacle.

14. In a lining for receptacles of the character described, a bag blank having wall dening sections, said sections being formed with slits, adjacent the filling side of the liner to be formed, the terminal portions of the slits being arcuately directed leaving a connected lobular contoured tab intermediate said naps. j

15. In a lining for receptacles of the character described, comprising a flat bag blank having sections for outlining the bag to be formed, said sections including adjacent the lling side thereof, slitted portions for folding the flaps, the material adjacent said slit defining and outlining a receptacle engaging tongue for the rim of said receptacle.

16. In a lining for receptacles of the character described, comprising a liner blank having Wall defining sections and creases, a portion of said section adjacent the filling side being slitted to outline folding flaps, the slit line adjacent the terminal portion thereof being inwardly directed away from the creases to minimize tearing along the creases.

ROBT. L. GRAY. 

